Chemical and thermal freeze-out parameters from1Ato200AGeV
نویسندگان
چکیده
منابع مشابه
Conservation of Particle Multiplicities between Chemical and Thermal Freeze-out
The evolution of a hadronic system after its chemical decomposition is described through a model that conserves the hadronic multiplicities to their values at chemical freeze-out. In the partition function describing the model all known hadronic resonances with masses up to 2400 MeV have been included. The state of the system is found as function of temperature and the corresponding baryon dens...
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Thermal models are commonly used to interpret heavy-ion data on particle yields and spectra and to extract the conditions of chemical and thermal freezeout in heavy-ion collisions. I discuss the usefulness and limitations of such thermal model analyses and review the experimental and theoretical evidence for thermalization in nuclear collisions. The crucial role of correlating strangeness produ...
متن کاملThe Path from Chemical to Thermal Freeze-out
The evolution of a hadronic system after its chemical decomposition is described through a model that conserves the hadronic multiplicities to their values at chemical freeze-out. The state of the system is found as function of temperature and the corresponding baryon density is evaluated. The baryon density at thermal decoupling is also computed. PACS numbers: 25.75.-q, 12.40.Ee, 05.70.Ce, 12....
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L. V. Bravina, E. E. Zabrodin, S. A. Bass, A. Faessler, C. Fuchs, M. I. Gorenstein , W. Greiner, S. Soff, H. Stöcker, H. Weber Institute for Nuclear Physics, Moscow State University, 119899 Moscow, Russia Institute for Theoretical Physics, University of Tübingen, D-72076 Tübingen, Germany Department of Physics, Duke University, Durham NC 27708, USA RIKEN-BNL Research Center, Brookhaven National...
متن کاملChiral condensate and chemical freeze-out
Abstract We consider a chemical freeze-out mechanism which is based on a strong medium dependence of the rates for inelastic flavor-equilibrating collisions based on the delocalization of hadronic wave functions and growing hadronic radii when approaching the chiral restoration. We investigate the role of mesonic (pion) and baryonic (nucleon) fluctuations for melting the chiral condensate in th...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 1999
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.60.054908